A method for packaging a liquid crystal panel includes the steps of: (1) providing a liquid crystal panel mounted on a carrier substrate; (2) placing a window frame over the liquid crystal panel; (3) placing a lens or windowpane on a supporting platform of an inner flange of the window frame and then laterally repositioning the windowpane against the positioning ribs distributed on the inner flange; and (4) depositing sealing glue into a groove area between the window frame and the windowpane.